Google Inc. sent out an invitation Wednesday for those considering buying Google Glass to come to three of its offices and test out the eyewear.

The three Glass "Basecamps" have been set up for prospective buyers in San Francisco, New York, and Los Angeles, according to PC Magazine.

"Come by one of our Basecamps for a demo, fitting, or support appointment. Whether you're a long time Explorer, or just interested in learning more about the technology, our Glass Guides are available to meet you face-to-face," the search giant wrote on its webpage.

The invitation was sent out to prospective buyers in an email. Taking the form of eyeglasses, the eyewear provides users with a variety of capabilities, such as recording video and taking photos. Users can also talk with friends and family, get directions, search the Web for information, among other activities, CNET reported.

The Mountain View, Calif.-based company made the device available in May, and has since updated it with dozens of new apps, as well as memory and battery power. The eyewear, despite its capabilities, has received criticism and has been the subject to jokes. However, it has also been reported to be useful in some significant professions, such as law enforcement and medicine.

While the basecamps have existed for a short period of time, they are now being opened up for demos to the public, WebProNews reported.

Prospective buyers must schedule an appointment in order to attend a Glass demo. Google said buyers can also bring a guest with them to their appointment, but added that the guest has to be over 13 to come.

"There's a lot of talk about Glass, but have you tried it out for yourself yet?" Google said in the email. "Sit down with a Glass Guide, take in the view and see what Glass is really like."